Ultra Cal Night influences multiple body systems involved with skeletal formation and maintenance, including bone synthesis, hormonal regulation, and calcium absorption and balance. This scientifically advanced calcium formula provides optimal forms of calcium and key co-nutrients to help support a healthy skeletal system. Ultra-Cal Night contains a one-to-one ratio of calcium and magnesium, along with other bone minerals and soy isoflavones to provide support for bones. Taking calcium supplements at night offers added protection until breakfast.